Question

The sum of two numbers is x. If one of the numbers is 12, what is the other?

12 x
12 - x
12 + x
x - 12

Answer 1

Answer:

12+y=x

y=x-12

so the another number is x-12 coz 12+x-12=x

Answer 2

Answer:

Here, the sum of two unknown nos is x . One of them is 12, the other one shall always be less than 12. Hence the ans is 12 - x .